[patch 17/60] kasan, arm64: rename kasan_init_tags and mark as __init

From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, andreyknvl@google.com,
	aryabinin@virtuozzo.com, Branislav.Rankov@arm.com,
	catalin.marinas@arm.com, dvyukov@google.com, elver@google.com,
	eugenis@google.com, glider@google.com, gor@linux.ibm.com,
	kevin.brodsky@arm.com, linux-mm@kvack.org,
	mm-commits@vger.kernel.org, torvalds@linux-foundation.org,
	vincenzo.frascino@arm.com, will.deacon@arm.com
Subject: [patch 17/60] kasan, arm64: rename kasan_init_tags and mark as __init
Date: Tue, 22 Dec 2020 12:01:03 -0800	[thread overview]
Message-ID: <20201222200103._POlSBJhz%akpm@linux-foundation.org> (raw)
In-Reply-To: <20201222115844.d30aaef7df6f5b120d3e0c3d@linux-foundation.org>

From: Andrey Konovalov <andreyknvl@google.com>
Subject: kasan, arm64: rename kasan_init_tags and mark as __init

Rename kasan_init_tags() to kasan_init_sw_tags() as the upcoming hardware
tag-based KASAN mode will have its own initialization routine.  Also
similarly to kasan_init() mark kasan_init_tags() as __init.

Link: https://lkml.kernel.org/r/71e52af72a09f4b50c8042f16101c60e50649fbb.1606161801.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Marco Elver <elver@google.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm64/kernel/setup.c  |    2 +-
 arch/arm64/mm/kasan_init.c |    2 +-
 include/linux/kasan.h      |    4 ++--
 mm/kasan/sw_tags.c         |    2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

--- a/arch/arm64/kernel/setup.c~kasan-arm64-rename-kasan_init_tags-and-mark-as-__init
+++ a/arch/arm64/kernel/setup.c
@@ -358,7 +358,7 @@ void __init __no_sanitize_address setup_
 	smp_build_mpidr_hash();
 
 	/* Init percpu seeds for random tags after cpus are set up. */
-	kasan_init_tags();
+	kasan_init_sw_tags();
 
 #ifdef CONFIG_ARM64_SW_TTBR0_PAN
 	/*
--- a/arch/arm64/mm/kasan_init.c~kasan-arm64-rename-kasan_init_tags-and-mark-as-__init
+++ a/arch/arm64/mm/kasan_init.c
@@ -283,7 +283,7 @@ void __init kasan_init(void)
 	kasan_init_shadow();
 	kasan_init_depth();
 #if defined(CONFIG_KASAN_GENERIC)
-	/* CONFIG_KASAN_SW_TAGS also requires kasan_init_tags(). */
+	/* CONFIG_KASAN_SW_TAGS also requires kasan_init_sw_tags(). */
 	pr_info("KernelAddressSanitizer initialized\n");
 #endif
 }
--- a/include/linux/kasan.h~kasan-arm64-rename-kasan_init_tags-and-mark-as-__init
+++ a/include/linux/kasan.h
@@ -192,7 +192,7 @@ static inline void kasan_record_aux_stac
 
 #ifdef CONFIG_KASAN_SW_TAGS
 
-void kasan_init_tags(void);
+void __init kasan_init_sw_tags(void);
 
 void *kasan_reset_tag(const void *addr);
 
@@ -201,7 +201,7 @@ bool kasan_report(unsigned long addr, si
 
 #else /* CONFIG_KASAN_SW_TAGS */
 
-static inline void kasan_init_tags(void) { }
+static inline void kasan_init_sw_tags(void) { }
 
 static inline void *kasan_reset_tag(const void *addr)
 {
--- a/mm/kasan/sw_tags.c~kasan-arm64-rename-kasan_init_tags-and-mark-as-__init
+++ a/mm/kasan/sw_tags.c
@@ -35,7 +35,7 @@
 
 static DEFINE_PER_CPU(u32, prng_state);
 
-void kasan_init_tags(void)
+void __init kasan_init_sw_tags(void)
 {
 	int cpu;
 
_

